engine NISSAN PATHFINDER 2003 R50 / 2.G Repair Manual

LOW TIRE PRESSURE WARNING
SYSTEM (if so equipped)The low tire pressure warning system monitors
tire pressure of all wheels (except the spare tire).
If the vehicle is being driven with very low tire
pressure (lower than 25 psi, 171 kPa), the low
tire pressure warning system will activate and
warn you of it by the low tire pressure warning
light. This system will activate only when the
vehicle is driven at speeds above 20 MPH (32
km/h). For more details, please refer to
“Warning/indicator lights and audible remind-
ers” in the “2. Instruments and controls” section,
and “Low tire pressure warning system” in the
“5. Starting and driving” section.
WARNING

If the low tire pressure warning light
illuminates while driving, avoid sud-
den steering maneuvers or abrupt
braking, reduce vehicle speed, pull
off the road to a safe location and
stop the vehicle as soon as possible.
Serious vehicle damage could occur
and may lead to an accident and
could result in serious personal in-jury. Check the tire pressure for all
four wheels and adjust the pressure
to the COLD tire pressure shown on
the tire placard. If you have a flat tire,
replace it with a spare tire as soon as
possible.

When a spare tire is mounted or a
wheel is replaced, the low tire pres-
sure warning system will not func-
tion. Contact your NISSAN dealer as
soon as possible for tire replacement
and/or system resetting.

Do not inject any tire liquid or aerosol
tire sealant into the tires, as this may
cause a malfunction of the tire pres-
sure sensors.
CHANGING A FLAT TIREIf you have a flat tire, follow the instructions
below.Stopping the vehicle1. Safely move the vehicle off the road away
from traffic.
2. Turn on the hazard warning flasher.3. Park on a level surface and apply the parking
brake. Shift the manual transmission into
reverse (automatic transmission in P).
WARNING


The transfer control lever
must be in the 2H, 4H or 4L position.

Never place the transfer control lever
in the Nposition. Otherwise, the ve-
hicle could roll unexpectedly even if
the manual transmission is in gear or
the automatic transmission is in the
P position. This could result in seri-
ous personal injury or property dam-
age.
All-mode 4WD models:

Make sure the 4WD shift indicator
and/or transfer 4LO position indica-
tor light remains illuminated before
stopping the engine.

Make sure the ATP light is off before
stopping the engine. Otherwise, the
vehicle could roll unexpectedly even
if the automatic transmission is in
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the P position. This could result in
serious personal injury or property
damage.
4. Turn off the engine.
5. Raise the hood to warn other traffic and to
signal professional road assistance person-
nel that you need help.
6. Have all passengers get out of the vehicle
and stand in a safe place away from traffic
and clear of the vehicle.
WARNING

Make sure that the parking brake is
securely applied and the manual
transmission is shifted into R (re-
verse), on the automatic transmis-
sion in P (Park).

Never change tires when the vehicle
is on a slope, ice or a slippery area.
This is hazardous.

Never change tires if oncoming trafficis close to your vehicle. Wait for pro-
fessional road assistance.

When a spare tire is mounted or a
wheel is replaced, the low tire pres-
sure warning system will not func-
tion. Contact your NISSAN dealer as
soon as possible for tire replacement
and/or system resetting. (For models
with the low tire pressure warning
system)
Blocking wheelsPlace suitable blocks at both the front and back
of the wheel diagonally opposite the flat tire to
prevent the vehicle from rolling when it is jacked
up.
WARNING
Be sure to block the wheel as the ve-
hicle may move and could cause per-
sonal injury.
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Jacking up the vehicle and removing
the damaged tire
WARNING

Never get under the vehicle while it is
supported only by the jack.

Use only the jack provided with your
vehicle to lift the vehicle. Do not use
the jack provided with your vehicle
on other vehicles. The jack is de-
signed only for lifting your vehicleduring a tire change.

Use the correct jack up points; never
use any other part of the vehicle for
jack support.

Never jack up the vehicle more than
necessary.

Never use blocks on or under the
jack.

Do not start or run engine while ve-
hicle is on the jack, as it may causethe vehicle to move. This is especially
true for vehicle with limited slip dif-
ferential carriers.

Do not allow passengers to stay in
the vehicle while it is on the jack.
Carefully read the following instructions.
1. Place the jack directly under the jack-up
point.
The jack should be used on level firm
ground.
2. Loosen each wheel nut one or two turns by
turning counterclockwise with the wheel nut
wrench.
Do not remove the wheel nuts until the tire
is off the ground.
3. Carefully raise the vehicle until the tire clears
the ground. To lift the vehicle, securely hold
the jack lever and rod with both hands as
shown above. Remove the wheel nuts, and
then remove the wheel. Do not remove the
brake drum with the wheel.
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CAUTION
Do not insert the jack rod straight as it isdesigned to be inserted at an angle as
shown.
When stowing the 17 inch wheel, remove the
cap pushing it from the inside of the wheel.If you try to start your engine with a booster
battery, follow the instructions and precautions
below:
WARNING

If done incorrectly, jump starting can
lead to a battery explosion, resulting
in severe injury or death. It could also
damage your vehicle.

Explosive hydrogen gas is always
present in the vicinity of the battery.
Keep all sparks and flames away
from it.

Do not allow battery fluid to come
into contact with eyes, skin, cloth or
painted surfaces. Battery fluid is a
corrosive sulphuric acid solution
which can cause severe burns. If the
fluid should come into contact with
anything, immediately flush the con-
tacted area with water.

Keep battery out of the reach of chil-
dren.

The booster battery must be rated at
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JUMP STARTING
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12 volts. Use of an improperly rated
battery can damage your vehicle.

Whenever working on or near a bat-
tery, always wear suitable eye protec-
tors (for example, goggles or indus-
trial safety spectacles) and remove
rings, metal bands, or any other
metal jewelry. Do not lean over bat-
tery when jump starting.

Do not attempt to jump start a frozen
battery. It could explode and cause
serious injury.

Your vehicle has an automatic en-
gine cooling fan. It could come on at
any time. Keep hands and other ob-
jects away from it.
WARNING
Always follow the instructions below.
Failure to do so could result in damage
to the charging system and cause per-
sonal injury.
1. Position the two vehicles to bring their bat-
teries into close proximity to each other if the
booster battery is in another vehicle.Do not
allow the two vehicles to touch.
2. Apply parking brakes. Move the shift lever toNeutral position (On automatic transmission
models, move the selector lever to P (Park)).
Switch off all unnecessary electrical systems
(light, heater, air conditioner, etc.).
3. Remove vent caps on the battery (if so
equipped). Cover the battery with an old
cloth to reduce explosion hazard.
4. Connect jumper cables in the sequence as
illustrated.
CAUTION

Always connect positive (+) to posi-
tive (+) and negative (−) to body
ground, (for example, strut mounting
bolt, engine lift bracket, etc. — not to
the battery).

Make sure that cables do not touch
moving parts in the engine compart-
ment and that clamps do not contact
any other metal.
5. Start the engine of the other vehicle and let it
run for a few minutes.
6. Keep the engine speed of the other vehicle at
about 2,000 rpm, and start your engine in the
normal manner.
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CAUTION
Do not keep starter motor engaged for
more than 10 seconds. If the engine
does not start right away, turn the key
off and wait 3 to 4 seconds before trying
again.
7. After starting your engine, carefully discon-
nect the negative cable and then the positive
cable.
8. Replace the vent caps (if so equipped). Be
sure to dispose of the cloth used to cover the
vent holes as it may be contaminated with
corrosive acid.
CAUTION

Automatic transmission models can-
not be push started. This may cause
transmission damage.

Three way catalyst equipped models
should not be started by pushing
since the three way catalyst may be
damaged.

Never try to start the vehicle by tow-
ing it; when the engine starts, the
forward surge could cause the ve-
hicle to collide with the tow vehicle.If your vehicle is overheating indicated by an
extremely high temperature gauge reading, or if
you feel a lack of engine power, detect abnormal
noise, etc., take the following steps:
WARNING

Do not continue to drive if your ve-
hicle overheats. Doing so could
cause a vehicle fire.

To avoid the danger of being scalded,
never remove the radiator cap while
the engine is still hot. When the ra-
diator cap is removed, pressurized
hot water will spurt out, possibly
causing serious injury.

Do not open the hood if steam is
coming out.
1. Move the vehicle safely off the road, apply the
parking brake and move the gearshift lever to
the neutral position (automatic transmission
to P (Park)).
Do not stop the engine.
2. Turn off the air conditioner switch. Open all
the windows, move the heater or air condi-
PUSH STARTING IF YOUR VEHICLE OVERHEATS
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tioner temperature control to maximum hot
and fan control to high speed.
3. If engine overheating is caused by climbing a
long hill on a hot day, run the engine at a fast
idle (approximately 1,500 rpm) until the tem-
perature gauge indication returns to normal.
4. Get out of the vehicle. Look and listen for
steam or coolant escaping from the radiator
before opening the hood. Wait until no steam
or coolant can be seen before proceeding.
5. Open the engine hood.
WARNING
If steam or water is coming from the
engine, stand clear to prevent getting
burned.
6. Visually check drive belts for damage or
looseness. Also check if the cooling fan is
running. The radiator hoses and radiator
should not leak water. If coolant is leaking,
the cooling fan belt is missing or loose or the
cooling fan does not run, stop the engine.
WARNING

Be careful not to allow your hands,
hair, jewelry or clothing to come into
contact with, or to get caught in, the
cooling fan, or drive belt.

The engine cooling fan can start at
any time when the coolant tempera-
ture is high.
7. After the engine cools down, check the cool-
ant level in the reservoir tank with the engine
running. Add coolant to the reservoir tank if
necessary. Have your vehicle repaired at the
nearest NISSAN dealer.When towing your vehicle, all State (Provincial in
Canada) and local regulations for towing must
be followed. Incorrect towing equipment could
damage your vehicle. Towing instructions are
available from your NISSAN dealer. Local ser-
vice operators are generally familiar with the
applicable laws and procedures for towing. To
assure proper towing and to prevent accidental
damage to your vehicle, NISSAN recommends
having a service operator tow your vehicle. It is
advisable to have the service operator carefully
read the following precautions:
WARNING

Never ride in a vehicle that is being
towed.

Never get under your vehicle after it
has been lifted by a tow truck.
CAUTION

When towing, make sure that the
transmission, axles, steering system
and powertrain are in working condi-TOWING YOUR VEHICLE
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8 Maintenance and do-it-yourselfMaintenance requirements .................................................. 8-2
General maintenance ............................................................ 8-2
Explanation of general maintenance items ................ 8-2
Maintenance precautions ..................................................... 8-5
Engine compartment check locations .............................. 8-7
Engine cooling system.......................................................... 8-9
Checking engine coolant level...................................... 8-9
Changing engine coolant ............................................ 8-10
Engine oil ............................................................................... 8-13
Checking engine oil level ............................................ 8-13
Changing engine oil ...................................................... 8-14
Changing engine oil filter ............................................ 8-15
Automatic transmission fluid ............................................. 8-16
Temperature conditions for checking ....................... 8-17
Power steering fluid ............................................................ 8-18
Brake and clutch fluid ........................................................ 8-19
Brake fluid ....................................................................... 8-19
Clutch fluid ...................................................................... 8-19
Window washer fluid.......................................................... 8-20
Window washer fluid reservoir .................................. 8-20
Battery .................................................................................... 8-21
Jump starting .................................................................. 8-21
Drive belts ............................................................................. 8-22
Spark plugs ........................................................................... 8-23Replacing spark plugs.................................................. 8-23
Air cleaner ............................................................................. 8-23
Windshield wiper blades ................................................... 8-24
Cleaning ........................................................................... 8-24
Replacing ......................................................................... 8-24
Parking brake and brake pedal ........................................ 8-25
Checking parking brake ............................................... 8-25
Checking brake pedal .................................................. 8-26
Brake booster ................................................................. 8-26
Fuses ...................................................................................... 8-27
Engine compartment ..................................................... 8-27
Passenger compartment .............................................. 8-28
Keyfobbattery replacement ........................................ 8-28
Lights ...................................................................................... 8-30
Headlights ....................................................................... 8-31
Wheels and tires ................................................................. 8-34
Tire pressure ................................................................... 8-34
Types of tires .................................................................. 8-35
Tire chains ....................................................................... 8-36
Changing wheels and tires ......................................... 8-37


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Your new NISSAN has been designed to have
minimum maintenance requirements with longer
service intervals to save you both time and
money. However, some day-to-day and regular
maintenance is essential to maintain your NIS-
SAN’s good mechanical condition, as well as its
emission and engine performance.
It is the owner’s responsibility to make sure that
scheduled maintenance, as well as general
maintenance, is performed.
As the vehicle owner, you are the only one who
can ensure that your vehicle receives the proper
maintenance care. You are a vital link in the
maintenance chain.
Scheduled maintenance:
For your convenience, both required and op-
tional scheduled maintenance items are de-
scribed and listed in your “Service and Mainte-
nance Guide”. You must refer to that guide to
ensure that necessary maintenance is performed
on your NISSAN at regular intervals.
General maintenance:
General maintenance includes those items
which should be checked during normal day-to-
day operation of the vehicle. They are essential if
your vehicle is to continue to operate properly. It
is your responsibility to perform these proce-
dures regularly as prescribed.Performing general maintenance checks require
minimal mechanical skill and only a few general
automotive tools.
These checks or inspections can be done by
yourself, a qualified technician or, if you prefer,
your NISSAN dealer.
Where to go for service:
If maintenance service is required or your vehicle
appears to malfunction, have the systems
checked and tuned by NISSAN dealer.
NISSAN technicians are well-trained specialists
and are kept up to date with the latest service
information through technical bulletins, service
tips, and in-dealership training programs. They
are completely qualified to work on NISSAN
vehiclesbeforethey work on your vehicle,
rather than after they have worked on it.
You can be confident that your NISSAN dealer’s
service department performs the best job to
meet the maintenance requirements of your ve-
hicle — in a reliable and economic way.During the normal day-to-day operation of the
vehicle, general maintenance should be per-
formed regularly as prescribed in this section. If
you detect any unusual sounds, vibrations or
smell, be sure to check for the cause or have
your NISSAN dealer check it promptly. In addi-
tion, you should notify your NISSAN dealer if you
think that repairs are required.
When performing any checks or maintenance
work, closely observe the “Maintenance precau-
tions” later in this section.
EXPLANATION OF GENERAL
MAINTENANCE ITEMSAdditional information on the following
items with “*” is found later in this section.Outside the vehicleThe maintenance items listed here should be
performed from time to time, unless otherwise
specified.
Tires*:
Check the pressure with a gauge at least once a
month and always prior to long distance trips. If
necessary, adjust the pressure in all tires, includ-
ing the spare, to the pressure specified. Check
carefully for damage, cuts or excessive wear.
MAINTENANCE REQUIREMENTS GENERAL MAINTENANCE8-2
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Wheel nuts*:
When checking the tires, make sure no nuts are
missing, and check for any loose nuts. Tighten if
necessary.
Tire rotation*:
Tires should be rotated every 7,500 miles
(12,000 km). However, the timing for tire rotation
may vary according to your driving habits and
road surface conditions.
Wheel alignment and balance:
If the vehicle should pull to either side while
driving on a straight and level road, or if you
detect uneven or abnormal tire wear, there may
be a need for wheel alignment.
If the steering wheel or seat vibrates at normal
highway speeds, wheel balancing may be
needed.
For additional information regarding tires, refer to
“Important Tire Safety Information” (US) or “Tire
Safety Information” (Canada) in the Warranty
Information booklet.
Windshield:
Clean the windshield on a regular basis. Check
the windshield at least every six months for
cracks or other damage. Have a damaged wind-
shield repaired by a qualified repair facility.Windshield wiper blades*:
Check for cracks or wear if they do not wipe
properly.
Doors and engine hood:
Check that all doors and the engine hood oper-
ate properly. Also ensure that all latches lock
securely. Lubricate hinges, latches, rollers and
links if necessary. Make sure that the secondary
latch keeps the hood from opening when the
primary latch is released.
When driving in areas using road salt or other
corrosive materials, check lubrication frequently.
Lights*:
Clean the headlights on a regular basis. Make
sure that the headlights, stop lights, tail lights,
turn signal lights, and other lights are all operat-
ing properly and installed securely. Also check
headlight aim.
Inside the vehicleThe maintenance items listed here should be
checked on a regular basis, such as when
performing periodic maintenance, cleaning the
vehicle, etc.Warning lights and chimes:
Make sure that all warning lights and chimes are
operating properly.
Windshield wiper and washer*:
Check that the wipers and washer operate
properly and that the wipers do not streak.
Windshield defroster:
Check that the air comes out of the defroster
outlets properly and in sufficient quantity when
operating the heater or air conditioner.
Steering wheel:
Check for changes in the steering conditions,
such as excessive freeplay, hard steering or
strange noises.
Seats:
Check seat position controls such as seat ad-
justers, seatback recliner, etc. to ensure they
operate smoothly and that all latches lock se-
curely in every position. Check that the head
restraints move up and down smoothly and that
the locks (if so equipped) hold securely in all
latched positions.
Seat belts:
Check that all parts of the seat belt system (e.g.
buckles, anchors, adjusters and retractors) op-
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